<?php
    class SessionHelper{
		
		public function createSession( $name, $value ){
			$_SESSION[$name] = $value;
			return $this;
		}	
			
		public function selectSession( $name ){
			return $_SESSION[$name];
			return $this;
		}	
			
		public function deleteSession( $name ){
			unset ( $_SESSION[$name] );
			return $this;
		}	
			
		public function checkSession( $name ){
			return isset($_SESSION[$name]);
		}
		
    }